Out of ideals on Merc Opti overheating

[honda 50]

Trying to sort out my friend 2000 Merc opti 150. I get overheat alarm. Used to get the alarm only while sitting around at idle/trolling . Motor only used in fresh water.I did a lot of research on it and here's what I have done so far. Change impeller ,2 thermostats, 2 temp sensor, even c/o Merc mod to poppet valve, now alarms all the time water pressure is good coming out 3 psi , is there anything else that I'm overlooking . Or a way to unplug a wire to stop computer going into "safe mode" Thanks Frank

 

[honda 50]

Come on guys someone must know at the very least which wire to cut to by pass the alarm?

 

[enginepower]

Water pressure good coming out 3psi? Is this from your water pressure gauge because that sounds way too low. You possibly have a restriction somewhere or you wrapped the impeller legs the wrong way upon install maybe. Think my dad has around same year motor and he gets about 10-12 psi idle and about 15-20 at higher rpm.

 

[Faztbullet]

Did you check the strainer screen in the adapter plate???